I went from a 2006 F250 Diesel to a 2012 F250 Gas. I was delighted to be able to hear the radio again at any highway speed, not feel guilty firing up the truck in a crowded campground early in the morning, glad not to get that diesel smell all over my shoes (doesn't evaporate away like gas does), and a whole lot of other reasons.
With both, I was pulling an 11K+ 5th wheel trailer. With the 2012 I've pulled the trailer from Indiana to the East Coast twice, to San Francisco once, and to Florida twice. Lots of mountains along the way. Yes, the diesel gave better mileage, but the per gallon cost difference virtually wiped out the actual out-of-pocket cost difference. Anyway, I'm glad to be back to gas.
But that's just my opinion.